Finding the Fourth Proportional to 7,145,032,607.85, 10,718,769,925.56 and 2,945,689,848.99
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Solution
The fourth proportional to 7,145,032,607.85, 10,718,769,925.56 and 2,945,689,848.99 is: 4,419,038,162.08
Step by Step Solution
- Step 1: Write the proportion equation
7,145,032,607.85 : 10,718,769,925.56 = 2,945,689,848.99 : x - Step 2: Convert to fraction form
7,145,032,607.85/10,718,769,925.56 = 2,945,689,848.99/x - Step 3: Cross multiply
7,145,032,607.85x = 10,718,769,925.56 × 2,945,689,848.99 - Step 4: Simplify right side
7,145,032,607.85x = 31,574,171,763,381,387,264 - Step 5: Solve for x
x = 31,574,171,763,381,387,264/7,145,032,607.85 - Step 6: Final answer
x = 4,419,038,162.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.